Sir Roger de Byron
Roger was born about 1157 in Horestan Castle, Byron, Derbyshire, England.  He died in 1199 in Horestan Castle, Byron, Derbyshire, England.

 Nichola de Verdun
Nichola was born about 1165 in Rodlowe, Shropshire, England.

 Sir Robert I de Byron
Robert I was born about 1182 in Horestan Castle, Byron, Derbyshire, England.